X2 and Y2 not responding

I am building a Primo using a SKR pro v1.2 board with a touch screen
I hooked the power, touch screen, the steppers and small fans to function test.

Stepper X1 Y1 and Z1 as well as Fan0 all work and respond to touch screen commands
X2 and Y2 not responding nor is fan1 or fan2

What steps should i take to Trouble shot this?

Have you loaded the dual firmware files onto the boards yet?

no. I will attempt that… and see what happens…
thank you for the quick suggestion…
Jerry